This is an article examining how other products are dependent on oil, and therefore argues whether or not we are irreversibly dependent on oil. That is, it is examining a cross elasticity between oil and many other products by way of a strong bond between the two.
This article talks about how Windows laptops prices are falling while Mac ones are remaining the same, what will definitely lead to a decrease in demand for Apple laptops as their XED is negative and are substitute goods in direct competition.
From Sondos, sent to Mr. Baron:
Whilst theinternet and technological developments provide massive opportunities, theyalso create problems. For some time now, newspapers have seen declining sales,as more and more information becomes available online. The higher price ofbuying newspapers decreases their demand all while increasing that ofinternet-based news links. Type something into Google or any other searchengine and you will typically find thousands of relevant articles, even if thestory has only just broken. As revenue from newspaper sales falls, revenue hasto be made somewhere else to continue investment in 'frontline journalism'. Thequestion is: where will this come from?